Lifting device.



J. E. GOLDEN.

LIFTING DEVICE.

APPLICATION FILED NOV. 14, 19M.

1,150,671. Patented Aug. 17, 1915.

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J. E. GOLDEN. v

LIFTING DEVICE.

APPLICATION FILFD NOV. 14. 1914.

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JOHN E. GOLDEN, OF MINNEAPOLIS, MINNESOTA.

LIFTING DEVICE.

Specification of Letters-Patent.

Patented Au 17, 1915.

Application filed November 14, 1914. Serial 170,872,207.

To (all 10/ 10777; it may concern Be it known that I, JOHN E. GOLDEN, a citizen of the United States, residing at Minneapolis, in the county of Hennepin and State of Minnesota, have invented certain new and useful Improvements in Lifting Devices; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This inventionrelates to improvements in lifting devices or grappling tongs that are designed to grapple ice, stone and other objects.

An object of importance is to provide a device of the character described that is of extremely simple construction, is light, strong and durable, constructed so that it may be readily taken apart for the purpose of repair or renewal of parts which may have become worn or broken and which is permitted a wide range of adjustment and adapted for use in connection with large gbjects.

The above and additional objects are accomplished by such means as are illustrated in the accompanying drawings, described in the following specification and then more particularly pointed out in the claims.

With reference to the drawings, wherein I have illustrated the preferred embodiment of my invention as it is reduced to practice, and throughout the several views of which similar reference numerals designate corresponding parts- Figure 1 is a front elevation of my improved lifting device, Fig. 2 is a bottom plan view, Fig. 8 is a fragmentary vertical sectional view taken through the hub member of the device, Fig. 41 is a horizontal sectional view taken in line 47-1 of Fig. 3, and Fig. 5 is an enlarged detail perspective view of the operating links and rod, showing them connected.

Referring to the drawings by characters of reference, the numeral 1 designates as an entirety a cylindrical centrally apertured hub member in which is slidably mounted an operating rod 2. The operating rod 2 is provided at its upper end with a loosely mounted or swiveled attaching ring 3 and is formed with an enlarged annular head 1 on its lower end. The lower part of the aperture in the hub 1 is enlarged, as at 5, to receive said head 4. and permits the rod- 2 to move up and down relative to the hub 1.

The lower part of the hub 1 is provided with vertical and longitudinal recesses 6. A .plurality of these recesses 6 are provided.

Pivotally mounted within each of the re cesses 6is a grappling hook 7. three of these hooks are used. Pivot pins 8 are inserted transversely through the hub member 1, through the recesses 6 therein and the upper ends of the shanks of the hooks 7, as clearly shown in Fig. 1. In inner ends of the hooks 7 are spaced sufiiciently to enable the head a to move freely up and down relative to the member 1.

A screw eye or similar attaching device 9 is secured to the head 4 on the rod 2 and r pivotally secured to the screw eye or like member 9 are operating rods 10. The operating rods 10 are formed with eyes 11 on their free ends and said eyes are connected with eyes 12 carried upon the inner faces of the shank of the hook members 7 at points adjacent the upper ends of said hook members shanks. The operating rods 10 are arranged so as to not interfere with the object being dragged or lifted by the device.

In the use of my device, the ring 3 is connected with a derrick or pull cable of any suitable character, not shown, and upon the relaxation of the cable not shown, the hooks 7 are free to be spread apart as shown in Fig. l, to effect a grasping or grappling of a stone, block of ice or other object to be dragged or lifted. After the hooks 7 have been arranged about the object to be grasped or lifted, a pull is communicated to the rod 2 which causes the hooks 7 to grapple the object and securely hold it against falling or release therefrom.

As a means for holding the hooks inwardly relative to one another and in fixed position, I provide a slidable ring 13 which is slidable upon the hub member 1 and arranged to be moved downwardly toward the lower end of the hub so as to hold the hooks against outward movement. WVhen the device is used as a drag the ring is downwardly upon the hub so as to hold the hooks in the position above named.

lVith reference to the foregoing description and accompanying drawings, it will be observed that I have provided an extremely simple and effective hookdevice, while the hook members are arranged to grasp an object to be dragged or lifted in a reliable manner so that falling thereof is prevented.

Preferably having a central bore and a plurality of vertical and longitudinal slots, said bore being enlarged at its lower end, an operating rod slidably mounted in said bore, an enlarged head on the lower part of the operating rod, grappling hooks pivoted in said slots and links pivotally connecting said hook and said operating rod, the enlarged part of said bore being adapted to receive the enlarged head of said operating rog thereby limiting the movement of said ro 2. A grappling device comprising a hub having a central bore and a plurality of vertical slots communicating with said bore, said bore being enlarged at its lower portion, an operating rod slidably mounted in said bore, an enlarged head on'the lower end of said operating rod, grappling hooks pivoted in said slots, eyes on the inner faces of said hooks adjacent their upper ends, a central eye secured to the enlarged head of said operating rod, links each having eyes formed in their ends, said eyes in said links being adapted to be pivotally connected to the eyes on the hooks and to the eye on the enlarged head of said operating rod whereby said hooks 'can be raised or lowered when said operating rod is manipulated.

3. A grappling device comprising a hub having a central bore and a plurality of vertical and longitudinal slots in its lower portion, said bore being enlarged atits lower end, an operating rod slidably mounted in said bore, an enlarged head on the lower part of the operating rod, grappling hooks pivoted in said slots, links pivotally connecting said hooks and said operating rod,

the enlarged part of said bore being adapted to receive the enlarged head of said operating rod thereby limiting the movement of said rod, and means for locking said hooks in a closed position. i

4. A grappling device comprisinga hub 11 aving a central bore and a plurality of vertical and longitudinal slots in its lower portion, said bore being enlarged at its lower end, an operating rod .slidably mounted in said bore, an enlarged head on the lower part of the operating rod, grappling hooks pivoted in said slots, links pivotally connecting said hooks and said operating rod,

the enlarged part of said bore being adapt,

ed to receive the enlarged head of said opcrating rod thereby limiting the movement of said rod and a ring slidably mounted on said hub and adapted to slide over said vertical and longitudinal slots thereby preventing said hooks from being raised.

In testimony whereof I afiix my signature in presence of two witnesses.

JOHN E. GOLDEN. Witnesses:

WILLOUGHBY M. BABGOGK, FnANcns LANNES.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

